HP 5326A Manual de servicio

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5326A/5327A

TIMER/COUNTER

OPERATING

AND

SERVICE

MANUAL

SERIAL

PREFIX:

5326A

—

1136

A

5327A

—

1120

A

This

manual

applies

to

HP

Model

5326A

having

serial

prefix

1136A

and

HP

Model

5327A

having

serial

prefix

1120A.

SERIAL

PREFIXES

NOT

LISTED

For

serial

prefixes

above

1136A

(5326A)

and

1120A

(5327A),

a

“Manual

Supplement”

sheet

is

included

with

this

manual.

For

serial

prefixes

below

1136A

and

1120A,

refer

to

Section

VII

of

this

manual.

Copyright

HEWLETT-PACKARD

COMPANY

1972

5301

STEVENS

CREEK

BLVD.,

SANTA

CLARA,

CALIF.

95050

Printed:

MAR

1972

THIS

MANUAL

PRINTED

ON

100%

RECYCLED

PAPER

HEWLETT

M

PACKARD

Model

5326/27A

General

Information

Figure

1-1.

HP

Model

5326A/5327A

Timer/Counter

Model

5326/27A

General

Information

SECTION

I

GENERAL

INFORMATION

1-1.

DESCRIPTION

1-2.

The

Hewlett-Packard

Models

5326A/5327A

are

frequency

counters

that

have

a

variety

of

functions.

The

basic

difference

between

the

two

models

is

the

addition

of

the

prescaler

assembly

in

the

5327A.

This

assembly

increases

the

upper

frequency

limit

from

50

MHz

to

550

MHz.

The

5326A

uses

a

high-

sensitivity,

50-ohm

input

amplifier

in

place

of

the

prescaler.

1-3.

The

instruments

measure

frequency,

period,

period

average,

time

interval,

time

interval

average,

and

ratio.

Features

include

a

7-digit

display

(8-digits

optional),

1M

ohm

and

50-ohm

inputs,

display

storage,

and

blanking

for

insignificant

digits

in

the

display.

Decimal

point

and

unit

readouts

are

dis¬

played

automatically

with

each

operating

selection.

Two

independent

input

channels

are

provided

for

time

interval

measurements.

Each

input

channel

has

an

attenuator,

trigger

slope

selector,

level

control,

ac-dc

coupling,

and

an

oscilloscope

marker

output.

Table

1-1

lists

the

electrical

and

mechanical

specifications.

1-4.

IDENTIFICATION

1-5.

Hewlett-Packard

uses

a

two-section

serial

num¬

ber

mounted

on

the

rear

panel.

Earlier

instruments

use

an

8-digit

serial

number

(000-00000).

The

first

three

digits

are

a

serial

prefix

number;

the

last

five

digits

refer

to

the

specific

instrument.

Later

instru¬

ments

use

a

9-digit

serial

number

(0000A00000).

The

first

four

digits

are

the

serial

prefix

and

the

last

five

digits

refer

to

the

specific

instrument.

If

the

serial

prefix

of

your

instrument

differs

from

that

listed

on

the

title

page

of

this

manual,

there

are

differences

between

this

manual

and

your

instrument.

Lower

serial

prefixes

are

documented

in

Section

VII,

and

higher

serial

prefixes

are

covered

with

manual

change

sheets

included

with

the

manual.

If

the

change

sheet

is

missing,

contact

the

nearest

Hewlett-Packard

Sales

and

Service

Office

listed

on

the

inside

rear

cover

of

this

manual.

1-6.

APPLICATIONS

1-7.

The

5326A/5327A

Counters

are

particularly

adaptable

to

timing

measurements

such

as

pulse

width,

pulse

repetition

frequency,

and

propagation

delay.

The

time

interval

average

mode

measures

time

interval

on

repetitive

signals

with

resolution

better

than

one

nanosecond.

When

used

with

microwave

test

systems,

group

delay,

phase,

and

level

measure¬

ments

can

be

performed.

1-8.

OPTIONS

1-9.

The

instrument

can

be

ordered

with

the

following

options:

Option

001,

8-digit

display;

Option

002,

re¬

mote

programming;

Option

003,

digital

recorder

out¬

puts;

and

Option

004,

remote

programming

for

all

signal

input

conditions.

Table

1-1.

Equipment

Supplied

Description

HP

Part.

No.

Detachable

Power

Cord,

l

l

A

8120-1348

ft.

(231

cm)

long

Rack

Mounting

Kit

05326-60029

Table

1-2.

Accessories

Available

Description

HP

Part

No.

Digital

Recorders

5050B,

5055A

Interconnect

Cable,

Digital

Recorder,

6

ft.

(183

cm)

562A-16C

50-ohm

BNC

to

BNC

Coaxial

Cable,

4

ft.

(122

cm)

10503-6001

Circuit

Board

Extender,

15-pin

(two

required)

5060-0049

Input

Amplifier

Circuit

Board

Extender

10532-60001

Circuit

Board

Extender,

18-pin

5060-2041

Extender

Board

Kit;

includes

two

5060-0049,

and

one

each

5060-2041,

and

10532-60001

10532A

1-1

Model

5326/27A

General

Information

Table

1-3.

INPUT

CHANNELS

A

AND

B

Range:

dc

coupled:

0-50

MHz

ac

coupled:

20

Hz

-

50

MHz

Sensitivity:

0.1

V

rms

sine

wave

0.3

V

p-p

pulse

8

ns

minimum

pulse

width

Sensitivity

can

be

decreased

by

10

or

100

times,

using

the

ATTENUATOR

switch.

Impedance:

1

MO

shunted

by

less

than

25

pF

Dynamic

Input

Voltage

Range:

0.1

to

3

V

rms

ac

times

attenuator

setting

±5

Vdc

times

attenuator

setting.

Trigger

Level:

PRESET

to

center

triggering

about

0

V

or

variable

over

the

range

of

-3

V

to

+3

V

times

attenuator

setting.

Trigger

threshold

band

<1.0

mV,

referred

to

input

at

maximum

frequency.

Overload

Protection:

250

V

rms

on

all

attenuator

settings,

except

25

V

rms

on

XI

above

50

kHz.

Slope:

Independent

selection

of

positive

or

negative

slope.

Channel

Inputs:

Common

or

separate

lines.

Marker

Outputs:

Rear

panel

BNC’s

DTL

pulse,

low

for

approximately

2

ps

after

trigger

point

for

A

and

B

channels.

INPUT

CHANNEL

C

5327A

Range:

direct:

1

kHz

-

50

MHz,

ac

coupled

prescaled:

0-550

MHz,

dc

coupled

Sensitivity:

direct:

5

mV

rms

prescaled:

100

mV

rms

Impedance:

500

nominal

Maximum

input:

5

volts

rms;

7.5

volts

peak

Trigger

Level:

0

volts

5326A

Range:

0

to

50

MHz,

dc

coupled

Sensitivity:

5

mV

rms

Specifications

Impedance:

500

nominal

Maximum

Input:

5

volts

rms;

7.5

volts

peak

Trigger

Level:

0

volts

CAUTION

Do

not

exceed

voltage

specification

or

damage

will

occur.

START

(Totalizing

and

Scaling)

Range:

0

-

10

MHz

Factor:

1

-10*

selectable

in

decade

steps

Output:

Rear

panel

TIME

BASE

BNC

Display:

Channel

A

input

divided

by

scaling

factor

FREQUENCY

Range:

0

-

50

MHz

(5326A)

0

-

550

MHz

(5327A)

Input:

Channel

A;

channel

C

for

direct

and

for

prescaled

(switchable).

Channel

A

provides

triggered

frequency

measurement

Gate

Times:

0.1

ps

to

10

s

in

decade

steps

Accuracy:

Direct:

±1

count

±

time

base

accuracy.

Prescaled:

±10

counts*

±

time

base

accuracy

Display:

kHz,

MHz,

or

GHz

with

positioned

decimal

point

TIME

INTERVAL

Range:

0.1

ps

to

10

9

seconds

Input:

Channels

A

and

B;

can

be

common

or

separate

Frequency

Counted:

10

MHz

to

0.1

Hz

in

decade

steps

Accuracy:

±1

count

±

time

base

accuracy

±

trigger

error.**

Display:

ps,

ms,

seconds

or

10’s

of

seconds

with

positioned

decimal

point

TIME

INTERVAL

AVERAGE

Range:

0.15

ns

to

10

s

Intervals

Averaged:

1

-10

8

selectable

in

decade

steps

*±10

counts

of

input

frequency

(±1

count

displayed).

Model

,5326/27A

General

Information

Table

1-3.

Specifications

(Continued)

Input:

Channels

A

and

B;

can

be

common

or

separate

Frequency

Counted:

10

MHz

Minimum

Time

Stop

to

Start:

150

ns

Accuracy:

±

time

base

accuracy

±

2

ns

(trigger

error**

-el00

ns)

Display:

ns,

/as

with

positioned

decimal

point

PERIOD

Range:

0-10

MHz

Input:

Channel

A

Frequency

Counted:

10

MHz

to

0.1

Hz

in

decade

steps

Accuracy:

±1

count

±

time

base

accuracy

±

trigger

error.***

Display:

/as,

ms,

seconds

or

10’s

of

seconds

with

positioned

decimal

point

PERIOD

AVERAGE

Range:

0

-10

MHz

Periods

Averaged:

1

-10

8

selectable

in

decade

steps.

Input:

Channel

A

Frequency

Counted:

10

MHz

Accuracy:

±

time

base

accuracy

±

1

count

±

trigger

error***

Display:

ns,

ms,

with

positioned

decimal

point

RATIO

Display:

F

A

/F

e

xt

or

F

C

/F

ex

t

times

MULTIPLIER

(M).

M

=

1

to

10*,

selectable

in

decade

steps

Range:

Fa

(Channel

A

or

Channel

C)

0

-

50

MHz

F

ex

t

(External

Oscillator

Input)

100

Hz

to

10

MHz

Mode:

Operating

mode

will

be

either

FREQUENCY

A

or

FREQUENCY

C

Accuracy:

±

1

count

of

F

A

±

trigger

error

of

F

ex

t

TIME

BASE

Crystal

Frequency:

10

MHz

Stability:

Aging

Rate:

<3

parts

in

lOVmo.

Temperature:

<±2.5

parts

in

I0

fi

,

0°

to

50°C.

Line

Voltage:

<±1

part

in

10

T

for

10%

line

variation.

Short-term

Fluctuation:

Typically

<5

parts

in

10

9

,

one-second

average

(at

con¬

stant

temperature)

Oscillator

Output:

10

MHz,

TTL

type

output

levels,

50Q

series

impedance

at

rear

panel

BNC

External

Input:

100

Hz

-10

MHz;

1

V

rms

into

IkO

Time

Base

Output:

Negative

pulses,

±3

V

to

0

V

(open

circuit),

typically

100

ns

wide.

In

START,

output

is

10

MHz

divided

by

TIME

BASE/MULTIPLIER

switch

setting.

Available

at

rear

panel

BNC.

Gate

Output:

TTL

level

pulses;

low

while

gate

open,

high

while

gate

closed.

Available

at

rear

panel

BNC.

GENERAL

Display:

7

digits

(8

optional)

Blanking:

Suppresses

display

of

unwanted

zeros

left

of

the

most

significant

digit

Display

Storage:

Holds

reading

between

samples.

Rear

panel

switch

overrides

storage

♦♦

For

any

waveshape,

trigger

error

is

less

than

00025

Signal

Slope

(V/ms)

***Trigger

error

is

less

than

±0.3%

of

one

period

*

periods

averaged

for

signals

with

40

dB

or

better

signal-to-noise

ratio

and

100

mV

rms

amplitude.

intervals

averaged

1

-

Mode)

5326/27A

General

Information

Table

1-3.

Specifications

(Continued)

Sample

Rate:

FAST

position:

Continuously

variable

from

less

than

100

pts

to

approximately

20

ms.

NORM

position:

Continuously

variable

from

less

than

20

ms

to

approximately

5

seconds.

HOLD

position:

Display

can

be

held

indefinitely.

Overt

low:

Neon

indicates

when

display

range

is

exceeded.

Operating

Temperature:

0°

to

50°C

Power

Requirements:

115

or

230

volts

±10%,

50

to

60

Hz,

70

watts

maximum

Weight:

Net,

16

lb.(7,4

kg).

Shipping,

18

lb.

16

oz(8,7

kg)

Accessories

Furnished:

Power

Cord,

7%

ft.

Rack

Mount

Kit.

Dl^EMSIONS

ACCESSORIES

AVAILABLE

HP

10503A,

50Q

BNC

Cable,

4

ft

(122

cm)

HP

10532A,

Extender

Board

Kit

containing

2

ea.

15-pin

extender

5060-0049,

1

ea.

18-pin

extender

5060-2041,

and

1

ea.

Amplifier

Extender,

10532-60001

IIP10542A,

Remote

Programming

Interface

enables

interfacing

between

the

5326/5327

Series

counter

with

Option

004

and

40-bit

Output

Register.

Includes

two

(2)

7-bit

Digital-to-Analog

Converters

for

level

controls

and

decoding

for

time

base

and

function

selector.

HP

Cable

562A-16C,

6

ft.

(183

cm)

to

connect

5326/5327

Series

with

Option

003

to

HP

5050B

or

5055A

Digital

Recorder

Option

001

:

8-digit

display

Option

002:

Remote

programming

Controls:

All

front

panel

controls

are

single

line

program¬

mable

except:

SEP-COM

(separate-common)

switch;

the

check

function

is

programmable

FAST/NORM

Mode

Input

Attenuators

AC/DC

Input

Signal

Coupling

Control

Signal:

Single

line

control

using

either

contact

closure

to

ground

or

DTL

drive

on

all

lines

except

trigger

levels

which

are

analog

programmed

(±3

Vdc)

Connector

Rear

panel

connector:

HP

1251-0085;

Amphenol

57-40300-375.

(36-pin

blue

ribbon).

Mating

connector:

HP

1251-0084;

Amphenol

57-30360-375

Option

003:

Digital

output

(for

numerals

and

polarity

only)

Code:

4-line

1-2-4-8

BCD,

“1”

state

high.

“0”

state

+0.25

V

at

-1

tnA;

“1”

state:

+5

V

open

circuit,

2.5

kQ

source

impedance

nominal

Print

Command:

+5

V

to

0

V,

dc

coupled:

occurs

at

end

of

gate.

Storage:

Buffer

storage

is

provided

so

BCD

output

is

constant

while

next

measurement

is

being

made

Inhibit

Input:

Inhibits

gate

when

instrument’s

cycle

time

is

less

than

the

time

required

for

external

equipment

to

interrogate

BCD

outputs.

Positive

inhibit

+5

Vdc

Connector:

Rear

panel

connector:

HP

1251-0087;

Amphenol

57-40500-375

(50-pin

blue

ribbon).

Mating

connector:

HP

1251-0086;

Amphenol

57-30500-375

Option

0G4:

Remote

Programming

including

all

signal

input

conditions.

Controls:

All

front

panel

controls

are

programmable

except

FAST/NORM

Mode.

Control

Signal:

Single

line

control

using

either

contact

closure

to

ground

or

DTL

drive

on

all

lines

except

trigger

levels

which

are

analog

programmable

(±3

Vdc).

Connector:

Rear

panel

connector:

HP

1251-0087;

Amphenol

57-40500-375

(50-pin

blue

ribbon)

Mating

Connector:

HP

1251-0086;

Amphenol

57-30500-375

Model

5326/27A

Installation

2-1.

INTRODUCTION

2-2.

This

section

contains

information

for

unpacking,

inspection,

repacking,

storage,

and

installation.

The

instructions

for

remote

programming

are

also

given

in

this

section.

2-3.

UNPACKING

AND

INSPECTION

2-4.

If

the

shipping

carton

is

damaged,

ask

that

the

carrier’s

agent

be

present

when

the

instrument

is

un¬

packed.

Inspect

the

instrument

for

damage

(scratches,

dents,

broken

knobs,

etc.).

If

the

instrument

is

damaged

or

fails

to

self-check

(Self-Check

Procedures,

Table

3-1),

notify

the

carrier

and

nearest

Hewlett-

Packard

Sales

and

Service

Office

immediately

(offices

are

listed

at

the

back

of

this

manual).

Retain

the

shipping

carton

and

padding

material

for

the

carrier’s

inspection.

The

sales

and

service

office

will

arrange

for

the

repair

or

replacement

of

your

instrument

with¬

out

waiting

for

the

claim

against

the

carrier

to

be

settled.

2-5.

STORAGE

AND

SHIPMENT

2-6.

PACKAGING.

To

protect

valuable

electronic

equipment

during

storage

or

shipment

always

use

the

best

packaging

methods

available.

Your

Hewlett-

Packard

Sales

and

Service

Office

can

provide

packing

material

such

as

that

used

for

original

factory

pack¬

aging.

Contract

packaging

companies

in

many

cities

can

provide

dependable

custom

packaging

on

short

notice.

Here

are

two

recommended

packaging-

methods:

a.

RUBBERIZED

HAIR.

Cover

painted

surfaces

of

instrument

with

protective

wrapping

paper.

Pack

instrument

securely

in

strong

corrugated

container

(350

lb/sq.

in.

bursting

test)

with

2-inch

rubberized

hair

pads

placed

along

all

surfaces

of

the

instrument.

Insert

fillers

between

pads

and

container

to

ensure

a

snug

fit.

b.

EXCEI^SIOR.

Cover

painted

surfaces

of

in¬

instrument

with

protective

wrapping

paper.

Pack

instrument

in

strong

corrugated

container

(350

lb/sq.

in.

bursting

test)

with

a

layer

of

excelsior

about

six

inches

thick

packed

firmly

against

all

surfaces

of

the

instrument.

2-7.

ENVIRONMENT.

Conditions

during

storage

and

shipment

should

normally

be

limited

as

follows:

a.

Maximum

altitude:

25,000

feet.

b.

Minimum

temperature:

-40°F

(-40°C).

c.

Maximum

temperature:

+167°F(+75°C).

2-8.

RACK

INSTALLATION

2-9.

The

counter

is

ready

for

bench

operation

as

shipped

from

the

factory.

Additional

parts

necessary

for

rack

mounting

are

packaged

with

the

instrument.

To

convert

to

rack

installation,

proceed

as

follows:

a.

Remove

tilt

stand.

b.

Remove

feet

(press

the

foot-release

button,

slide

foot

toward

center

of

instrument,

and

lift

off).

c.

Remove

adhesive-backed

trim

strips

at

front

end

of

sides.

d.

Attach

filler

strip

along

bottom

edge

of

front

panel

using

two

screws

on

outer

edges

of

filler

strip.

Omit

the

center

screw.

e.

Attach

flanges

to

front

end

of

sides

(larger

comer

notch

toward

bottom

of

instrument).

Instrument

is

now

ready

to

mount

in

standard

rack.

CAUTION

Ambient

temperature

in

rack

during

operation

should

not

exceed

122°F

(50''C).

Be

sure

instrument

position

in

rack

permits

adequate

air

circulation

and

that

nearby

equipment

does

not

dis¬

charge

hot

air

directly

on

the

instrument.

2-10.

POWER

CONNECTION

2-11.

LINE

VOLTAGE.

The

counter

may

be

operated

from

either

115

or

230

volt

(±10%)

power

lines

with

frequencies

from

50

to

60

Hz.

A

slide

switch

on

the

rear

panel

permits

quick

conversion

for

operation

from

either

voltage.

Insert

a

narrow-blade

screw¬

driver

in

the

switch

slot

and

slide

the

switch

to

the

right

for

230

volt

operation

(“230”

marking

exposed)

or

to

the

left

for

115

volt

operation

(“115”

marking

exposed).

The

counter

is

supplied

with

a

115

volt

fuse;

be

sure

to

change

this

fuse

for

230

volt

operation,

see

Table

2-1.

CAUTION

Before

plugging

instrument

to

ac

power

line

be

sure

slide

switch

is

properly

positioned.

2-1

Model

5326/27A

Installation

Table

2-1.

115/230

Volt

Conversion

Line

Voltage

Conversion

115

Volt

230

Volt

Slide

Switch

Left

(1.15)

Right

(230)

AC

line

Fuse

1.50

Ampere

(Slow-Blow)

(HP

2110-0304)

0.8

Ampere

(Slow-Blow)

(HP

2110-0020)

2-12.

POWER

CABLE.

The

counter

is

equipped

with

a

detachable

3-wire

power

cable.

Proceed

as

follows

for

installation.

a.

Connect

plug

(3-socket

connector)

to

ac

line

jack

at

rear

of

instrument.

b.

Connect

plug

(2-blade

with

round

grounding

pin)

to

3-wire

(grounded)

power

outlet.

Exposed

portions

of

instrument

are

grounded

through

the

round

pin

on

the

plug

for

safety;

when

only

2-blade

outlet

is

available,

use

connector

adapter

(HP

Part

No.

1251-0048),

then

connect

short

wire

from

side

of

adapter

to

ground.

2-13.

REMOTE

PROGRAMMING,

OPTION

002

2-14.

The

following

paragraphs

describe

remote

pro¬

gramming

requirements

for

the

counter

with

Option

002.

See

Paragraph

2-33

for

Option

004

programming.

2-15.

Front

Panel

Controls

2-16.

The

following

front-panel

controls

are

program¬

mable:

a.

FUNCTION

b.

TIME

BASE/MULTIPLIER

c.

CHECK

function

d.

SLOPE

e.

SAMPLE

RATE

and

HOLD

f.

LEVEL

controls

g.

INPUT

C

switch

(5327A

only)

h.

RESET

2-17.

The

following

front-panel

controls

are

NOT

programmable:

a.

AC/DC

b.

SEP-COM

c.

FAST/NORM

d.

ATTEN

2-18.

The

trigger

level

controls

may

be

remotely

pro¬

grammed

or

the

front-panel

LEVEL

controls

may

be

used.

It

is

possible

to

program

the

LEVEL

controls

without

programming

the

remainder

of

the

front-

panel

controls.

When

remote

programming

is

used,

the

LEVEL

controls

must

be

set

to

PRESET.

Display

time

may

be

remotely

programmed

and/or

the

front-

panel

controls

may

be

used.

2-19.

Remote

Programming

Requirements

2-20.

All

lines

may

be

controlled

by

TTL

or

DTL

signals

or

contact

closure

to

ground

when

the

unit

is

being

remotely

programmed:

except

the

trigger

levels

which

are

programmed

by

an

analog

level

(if

pro¬

grammed)

and

the

display

time

line

(Hold),

J10

pin

35,

which

should

NOT

be

pulled

up

to

+5

V

by

less

than

200Q

while

programming.

2-21.

When

the

unit

is

NOT

being

programmed

(Ext

line

high),

all

the

lines

should

be

left

open

or

pulled

up

to

+5

V

by

not

less

than

5kO,

except

the

trigger

levels,

which

should

be

open

circuited.

2-22.

Remote

Programming

Procedure

2-23.

In

order

to

remotely

program

the

counter,

the

following

must

be

done:

a.

Set

FUNCTION

switch

to

any

function

but

START

or

STOP.

b.

Ground

the

EXT

line

at

rear-panel

REMOTE

PROGRAM

connector

J

10(17).

This

disables

the

front

panel

switches.

Ground

is

available

at

J

10(36).

c.

Select

the

desired

function.

d.

Select

the

desired

time

base.

e.

Select

the

slope

(

+

or

-)

for

CHANNEL

A

and

B.

This

is

accomplished

by

grounding

the

Slope

line

for

(-)

and

leaving

it

open

for

(+).

Slope

A

line

is

J10(28).

Slope

B

line

is

J

10(29).

f.

Select

the

trigger

level

for

input

signal.

g.

Adjust

the

display

time.

h.

Manual

reset

is

available

by

grounding

(<.7

V)

pin

34.

Check

is

available

by

grounding

pin

14.

2-2